We own a very nice large lot in a recreational community in north central Il. It is open year round, but it gets pretty deserted after labor day. This is home base for us when we are not towing. We like all the activities for the kids during the summer. We have built a small deck, a gravel driveway and a little fire pit. We have full hook-ups water, electric, sewer that make it effortless to get some camping in when we only have a day or two free.
You can check out the place here: Woodhaven Lakes
We own our lot and pay an annual HOA of around 1k which in my opinion is a bargain for all the amenities. We also have to pay the property taxes about 100 bucks a year and our electric is metered. Our highest electric bill ever was about $15. Total cost annually is right around 1300. The value of the time with family is priceless.
Like others have said, when we are ready to hit the road we hitch up and off we go.